The Transport Ministry has sent a team to investigate what caused a small twin- engine light aircraft to crash yesterday morning in Nakhon Phanom, killing all three people on board. Chula Sukmanop, director-general of the Department of airport s said yesterday.nakorn phanom hospital for autopsie he said The DA42 aircraft, operated by the Inter- national Aviation College Nakhon Phanom, crashed in a field near Khok Kong, in Muang district